James Kirkup is The Telegraph's Executive Editor (Politics). He was previously the Telegraph's Political Editor and has worked at Westminster since 2001.

Get your revelation in first

Full coverage of UK PoliticsDavid Cameron is clearly mounting a damage-limitation effort hoping that 'fessing up to his MPs' fondness for keeping it in the family will pre-empt any more Conway-esque revelations in the Sunday papers. And now Labour is apparently about to attempt a similar plea-bargain confession.

Will it work? It seems unlikely. Those industrious souls of HM Sunday Press have already spent long hours scouring networking sites for exotic parliamentary offspring (my own personal favourite is here) and are unlikely to want to see their labours go to waste.Â